Abstract
Normal meshes were recently introduced as a new way to represent geometry. A normal mesh is a tnultiresolution representation which has the property that all details lie in a known normal direction and hence the mesh depends only on a single scalar per vertex. Such meshes are ideally suited for progressive compression. We demonstrate such a compression algorithm for normal meshes representing complex, arbitrary topology surfaces as they appear in 3D scanning and scientific visualization. The resulting coder is shown to exhibit gains of an additional 2-5dB over the previous state of the art.
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